“地球时”的概念、定义、翻译、参考文献-科学参考

单词	地球时
释义	地球时 Encyclopedia 工学时标释 terrestrial time地球时由国际天文联合会（IAU）定义的现代天文时间标准。是以秒为基本单位的理论理想时标，英文缩写TT。主要服务于在地表上进行的天文观测。理学坐标时释 terrestrial time地球时地心坐标系的一种坐标时。简称TT。 Astronomy 全称：Terrestrial Time。缩写：TT地球时
随便看	database for urban survey database-guided design database hypergraph database index database industry database integrator database language database log authentication database logical structure design database machine database management automation database management system database management system, DBMS database marketing database middleware database normalization designing database of engineering survey database of geological survey database of invasive alien species in China database of mineral resources potential evaluation database of national major urban environmental geological survey database of regional geochemical database of surveying and mapping datum data base of values and facts database operation managemen

科学参考收录了854744条科技类词条，基本涵盖了常见科技类参考文献及英语词汇的翻译，是科学学习和研究的有利工具。